diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/merged/EditMergedSettingsHeaderAdapter.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/merged/EditMergedSettingsHeaderAdapter.kt
index f469ac417..299aebf45 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/manga/merged/EditMergedSettingsHeaderAdapter.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/manga/merged/EditMergedSettingsHeaderAdapter.kt
@@ -56,7 +56,6 @@ class EditMergedSettingsHeaderAdapter(
                 android.R.layout.simple_spinner_dropdown_item,
                 // KMK <--
                 listOfNotNull(
-                    itemView.context.stringResource(SYMR.strings.no_dedupe),
                     itemView.context.stringResource(SYMR.strings.dedupe_priority),
                     itemView.context.stringResource(SYMR.strings.dedupe_most_chapters),
                     itemView.context.stringResource(SYMR.strings.dedupe_highest_chapter),
@@ -69,10 +68,9 @@ class EditMergedSettingsHeaderAdapter(
             state.mergeReference?.let {
                 binding.dedupeModeSpinner.setSelection(
                     when (it.chapterSortMode) {
-                        MergedMangaReference.CHAPTER_SORT_NO_DEDUPE -> 0
-                        MergedMangaReference.CHAPTER_SORT_PRIORITY -> 1
-                        MergedMangaReference.CHAPTER_SORT_MOST_CHAPTERS -> 2
-                        MergedMangaReference.CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER -> 3
+                        MergedMangaReference.CHAPTER_SORT_PRIORITY -> 0
+                        MergedMangaReference.CHAPTER_SORT_MOST_CHAPTERS -> 1
+                        MergedMangaReference.CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER -> 2
                         else -> 0
                     },
                 )
@@ -87,11 +85,10 @@ class EditMergedSettingsHeaderAdapter(
                 ) {
                     state.mergeReference = state.mergeReference?.copy(
                         chapterSortMode = when (position) {
-                            0 -> MergedMangaReference.CHAPTER_SORT_NO_DEDUPE
-                            1 -> MergedMangaReference.CHAPTER_SORT_PRIORITY
-                            2 -> MergedMangaReference.CHAPTER_SORT_MOST_CHAPTERS
-                            3 -> MergedMangaReference.CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER
-                            else -> MergedMangaReference.CHAPTER_SORT_NO_DEDUPE
+                            0 -> MergedMangaReference.CHAPTER_SORT_PRIORITY
+                            1 -> MergedMangaReference.CHAPTER_SORT_MOST_CHAPTERS
+                            2 -> MergedMangaReference.CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER
+                            else -> MergedMangaReference.CHAPTER_SORT_NONE
                         },
                     )
                     xLogD(state.mergeReference?.chapterSortMode)
@@ -103,7 +100,7 @@ class EditMergedSettingsHeaderAdapter(
 
                 override fun onNothingSelected(parent: AdapterView<*>?) {
                     state.mergeReference = state.mergeReference?.copy(
-                        chapterSortMode = MergedMangaReference.CHAPTER_SORT_NO_DEDUPE,
+                        chapterSortMode = MergedMangaReference.CHAPTER_SORT_NONE,
                     )
                 }
             }
@@ -172,7 +169,7 @@ class EditMergedSettingsHeaderAdapter(
                 }
                 state.mergeReference = state.mergeReference?.copy(
                     chapterSortMode = when (isChecked) {
-                        true -> MergedMangaReference.CHAPTER_SORT_NO_DEDUPE
+                        true -> MergedMangaReference.CHAPTER_SORT_PRIORITY
                         false -> MergedMangaReference.CHAPTER_SORT_NONE
                     },
                 )
diff --git a/domain/src/main/java/tachiyomi/domain/chapter/interactor/GetMergedChaptersByMangaId.kt b/domain/src/main/java/tachiyomi/domain/chapter/interactor/GetMergedChaptersByMangaId.kt
index d38b90cc4..39a283304 100644
--- a/domain/src/main/java/tachiyomi/domain/chapter/interactor/GetMergedChaptersByMangaId.kt
+++ b/domain/src/main/java/tachiyomi/domain/chapter/interactor/GetMergedChaptersByMangaId.kt
@@ -69,7 +69,7 @@ class GetMergedChaptersByMangaId(
         chapterList: List<Chapter>,
     ): List<Chapter> {
         return when (mangaReferences.firstOrNull { it.mangaSourceId == MERGED_SOURCE_ID }?.chapterSortMode) {
-            MergedMangaReference.CHAPTER_SORT_NO_DEDUPE, MergedMangaReference.CHAPTER_SORT_NONE -> chapterList
+            MergedMangaReference.CHAPTER_SORT_NONE -> chapterList
             MergedMangaReference.CHAPTER_SORT_PRIORITY -> dedupeByPriority(mangaReferences, chapterList)
             MergedMangaReference.CHAPTER_SORT_MOST_CHAPTERS -> {
                 findSourceWithMostChapters(chapterList)?.let { mangaId ->
diff --git a/domain/src/main/java/tachiyomi/domain/manga/model/MergedMangaReference.kt b/domain/src/main/java/tachiyomi/domain/manga/model/MergedMangaReference.kt
index 7e4f37743..ee87ac77d 100644
--- a/domain/src/main/java/tachiyomi/domain/manga/model/MergedMangaReference.kt
+++ b/domain/src/main/java/tachiyomi/domain/manga/model/MergedMangaReference.kt
@@ -36,9 +36,8 @@ data class MergedMangaReference(
 ) {
     companion object {
         const val CHAPTER_SORT_NONE = 0
-        const val CHAPTER_SORT_NO_DEDUPE = 1
-        const val CHAPTER_SORT_PRIORITY = 2
-        const val CHAPTER_SORT_MOST_CHAPTERS = 3
-        const val CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER = 4
+        const val CHAPTER_SORT_PRIORITY = 1
+        const val CHAPTER_SORT_MOST_CHAPTERS = 2
+        const val CHAPTER_SORT_HIGHEST_CHAPTER_NUMBER = 3
     }
 }